Description

Ordinarily, anything output (such as with echo
or print) will be output as though it were printed
from the parent's scope. Using runkit_sandbox_output_handler()
however, output generated by the sandbox (including errors), can be captured
by a function outside of the sandbox.

Note: Sandbox support (required for
runkit_lint(), runkit_lint_file(),
and the Runkit_Sandbox class) is only available as of
PHP 5.1.0 or specially patched versions of PHP 5.0, and requires that thread
safety be enabled.
See the README file included in the runkit package for
more information.

Note:
Deprecated

As of runkit version 0.5, this function is deprecated and is scheduled to
be removed from the package prior to a 1.0 release. The output handler for
a given Runkit_Sandbox instance may be read/set using the array offset syntax
shown on the Runkit_Sandbox class definition page.

Parameters

sandbox

Object instance of Runkit_Sandbox class on which to set output handling.

callback

Name of a function which expects one parameter.
Output generated by sandbox will be passed
to this callback. Anything returned by the callback will be displayed
normally. If this parameter is not passed then output handling will not be changed.
If a non-truth value is passed, output handling will be disabled and will revert to
direct display.

Return Values

Returns the name of the previously defined output handler callback, or
FALSE if no handler was previously defined.